http://lod.bco-dmo.org/id/dataset/985892
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2025-10-03
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Capture data and DNA yields from sea urchin specimens plus surrounding water and sediments collected in 2023 from four locations along the coast of Puerto Rico
2025-11-14
publication
2025-11-14
revision
BCO-DMO Linked Data URI
2025-11-14
creation
http://lod.bco-dmo.org/id/dataset/985892
Carlos Toledo-Hernandez
Sociedad Ambiente Marino
principalInvestigator
Filipa Godoy-Vitorino
University of Puerto Rico School of Medicine
principalInvestigator
Claudia Patricia Ruiz-Diaz
Sociedad Ambiente Marino
principalInvestigator
Nataliya Chorna
University of Puerto Rico School of Medicine
principalInvestigator
Elif Kardas
The University of Mons (Belgium)
principalInvestigator
Ruber Rodriguez-Barreras
University of Puerto Rico - Mayaguez
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Godoy-Vitorino, F., Toledo-Hernandez, C., Kardas, E., Chorna, N., Rodriguez-Barreras, R., Ruiz-Diaz, C. P. (2025) Capture data and DNA yields from sea urchin specimens plus surrounding water and sediments collected in 2023 from four locations along the coast of Puerto Rico. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2025-11-14 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/985892 [access date]
Puerto Rico sea urchin capture data Dataset Description: <p>This dataset is one of multiple&nbsp;datasets from a study investigating sea urchins and associated water and sediment samples from four shallow reef ecosystems in coastal waters surrounding Puerto Rico. All analyses were conducted by the PRINBRE Metabolomics Research Core at the University of Puerto Rico, Medical Sciences Campus, in collaboration with marine biologists from the Institute of Tropical Ecosystem Studies. The study is part of a broader initiative to integrate marine ecology with chemical ecology and metabolomics.</p>
<ul>
<li><strong>Sea urchin capture data, sizes, and DNA yields [this dataset]</strong></li>
<li>Metabolites from GC-MS analysis of sea urchin&nbsp;gut samples and associated seawater samples [dataset 986552]</li>
<li>Raw GC-MS data (metabolomics) data [dataset number TBD]</li>
<li>Microbiome data 16S rRNA results for sea urchin gut content, sediment, and surrounding seawater [dataset&nbsp;986537]</li>
</ul>
<p dir="ltr">This dataset presents field sampling, animal capture data, sizes, and DNA yields.&nbsp;</p> Methods and Sampling: <p><strong>Study location</strong><br />
The study was conducted at four sites along the northeastern and eastern coasts of Puerto Rico. These sites were selected due to the robust ecological and microbial data on <em>Diadema antillarum</em> collected in previous studies (Rodríguez-Barreras et al., 2018, 2021, and 2022). Furthermore, recent observations suggest contrasting levels of disease impact among these sites, ranging from deeply affected to unaffected by the disease. Punta Melones (<strong>PME</strong>, 18°16'51.40"N, 65°17'12.21"W), located in the Luis Peña Natural Reserve in Culebra had a high density of sea urchins (1.5 ind. per m<sup>2</sup>) before the recent die-off. &nbsp;Nevertheless, Rodríguez-Barreras et al., (2023) observed over 90% mortality of sea urchin at the site. Punta Bandera (<strong>PBA, </strong>18°23'18.46" N, 65°43'5.52"W), Cerro Gordo reef (<strong>CGO</strong> 18°29'05.54"N, 65°20'21.65"W), and Punta Sardinas (<strong>PSA</strong> 18°28'36.34"N, 66°17'52.48"W), are fringing reefs located on the northern coast of Puerto Rico. These sites exhibited densities around 1.26 ind. per m<sup>2</sup>.&nbsp;</p>
<p><em><strong>~ ~ ~ ~</strong></em><br />
<strong>Data Manager comment: </strong><em><strong>The abstract mentions different collection sites with different site abbreviations:&nbsp;</strong></em>Specific collection sites reflect a geographic spread intended to capture environmental variability. Four coastal sites were Cerro Gordo (CGD), Dorado (DBE), Luquillo (PTB), and Punta Las Marias (PTM).&nbsp; <em><strong>se[The sites in the abstract should list those in the Methods and vice versa. Please let data manager know which is correct and provide latitude and longitude values (and verify values for coordinates that are in the data table)]</strong></em><br />
<em><strong>~ ~ ~ ~&nbsp;</strong></em></p>
<p><strong>Data and Sample Collection</strong><br />
Each site was surveyed on months 0, 3, 6, and 9 to collect samples from March 2023 to December 2023, between the hours of 10:00 and 13:00.&nbsp;We set up eight belt transects of 20 m<sup>2&nbsp;</sup>(10 meters x 2 meters) parallel to the coast to estimate density. Transects were positioned at least 5 meters apart from each other, at depths ranging from 1 to 3 meters; as sea urchin abundance tends to be higher at these depths. All individuals within each transect were counted. These data were used to estimate sea urchin density (i.e., the number of urchins per transect per site). At each site, between 1 and 3 healthy sea urchin specimens were collected, for a total of 45 individuals. Additionally, we measured the horizontal test diameter (<em>td</em>) of individuals collected from the transects to assess the size distribution at each reef. A total of 50 individuals per reef were measured using a caliper. If necessary, sea urchins found outside of the transects were also measured until reaching 50 individuals per reef, following Mercado-Molina et al., (2015) and Rodríguez-Barreras et al. (2018, 2023). We also measured the tests of dead and diseased sea urchins when possible. Based on test diameter, sea urchins were categorized into three size classes: small or juvenile (<em>td</em> ≤ 4.0 cm), medium or young adult (4.01 &lt; <em>td</em> ≤ 6.0 cm), and large or adult (<em>td</em> ≥ 6.01 cm). These data were used to construct a size-frequency distribution (Miller et al., 2003; Lugo-Ascorbe, 2004; Rodríguez-Barreras et al., 2014; Rodríguez-Barreras et al., 2023).</p>
<p>Additionally, 1 liter of seawater (in a sterile glass bottle) and 50 mL of sediment (in a sterile plastic tube) were collected during each survey. Sampling was approved by the Department of Natural and Environmental Resources of Puerto Rico permit #DRNA-2022-IC-026 (O-VS-PVSlS-SJ-01291-06052022). The IACUC permit previously approved for Rodríguez-Barreras used in a former sea urchin-microbiota project was renewed until September 29, 2026 (UPRRCM # A530118).</p>
<p><strong>Sample processing</strong><br />
Upon arrival at the Microbiome Laboratory of Dr. Filipa Godoy-Vitorino (University of Puerto Rico Medical School), all sample types were processed according to standard lab operating procedure (see Supplemental Files). Sediment was divided into 50 mL tubes. Seawater was filtered and then divided into two aliquots--one for downstream microbial analyses and the other for metabolomic analyses--with a minimum of 50 milliliters of seawater per sample.&nbsp;Sea urchins were&nbsp;anesthetized, and the size across equatorial diameter was measured with calipers. At that time, the presence of albinism on the sea urchin test was recorded. All sample types were then stored at -80°C until analysis (and dissection).&nbsp;</p>
<p>The sea urchins were dissected following the standard protocol (Tosado et al., 2023)&nbsp;to obtain gut&nbsp;pellets. At the height of the maximum diameter, sea urchins were opened with an equatorial cut and the digestive tract removed. This includes gut tissue, esophagus, stomach, and intestine which are then rinsed with autoclaved sea water. The gut food pellets are voided by gentle shaking.&nbsp;Each pellet was divided into two subsamples for microbial and metabolomic analysis with a minimum size of&nbsp;50 milligrams. At the end of the sampling period (December 2023), a total of 45 sea urchin gut pellets, 14 sediment samples, and 16 seawater samples were collected.&nbsp;</p>
<p><strong>DNA extraction&nbsp;</strong><br />
The DNA&nbsp; of the 3 sample types (gut pellets, sediments, sea water) was then extracted using DNeasy PowerSoil Pro kit (QIAGEN LLC, Germantown Road, Maryland, United States) and quantified using Qubit® dsDNA HS assay kit. We normalized the DNA to 4nM during the 16S rRNA gene library preparation process. Using region-specific primers that include sequencer adapter sequences used in the Illumina flowcell, we used the Earth Microbiome Project standard protocols (Caporaso et al., 2023) &lt;-- [<strong><em>added this. Please confirm</em></strong>]&nbsp;to amplify the hypervariable region V4 of the 16S ribosomal RNA gene (~291 bp) using the universal bacterial primers 515F (5′GTGCCAGCMGCCGCGGTAA3′) and 806R (5′GGACTACHVGGGTWTCTAAT3′). Amplicons were measured with a plate reader (Infinite® 200 PRO, Tecan) and PicoGreen (Invitrogen). Volumes of all the products were combined into one tube after they were quantified, resulting in an equimolar representation of each amplicon. This pool was then cleaned up using AMPure XP Beads (Beckman Coulter), and finally quantified using a fluorometer (Qubit, Invitrogen). Customized sequencing was outsourced to Argonne National Laboratory in Illinois, USA, utilizing a 2 × 150 bp paired-end sequencing kit with an Illumina MiSeq. The sequencer's reads and the metadata that went along with them were uploaded to QIITA study ID 15616 (version 2024.02).&nbsp;</p>
<p>&nbsp;</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-2243580 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=2243580
onGoing
Carlos Toledo-Hernandez
Sociedad Ambiente Marino
787-674-0681
cgth0918@gmail.com
pointOfContact
Filipa Godoy-Vitorino
University of Puerto Rico School of Medicine
787-758 2525 ext 2096/1389
Department of Microbiology Universidad de Puerto Rico, Recinto de Ciencias Médicas
ilipa.godoy@upr.edu
pointOfContact
Claudia Patricia Ruiz-Diaz
Sociedad Ambiente Marino
787-439-9521
claudiaruiz@sampr.org
pointOfContact
Nataliya Chorna
University of Puerto Rico School of Medicine
nataliya.chorna@upr.edu
pointOfContact
Elif Kardas
The University of Mons (Belgium)
elif.kardas@upr.edu
pointOfContact
Ruber Rodriguez-Barreras
University of Puerto Rico - Mayaguez
ruber.rodriguez@upr.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
sample_ID
loc
latitude
longitude
loc_abbrev
period
specimen_num
sample_type
health_status
SU_equatorial_diameter
DNA_yield_1st_extr
DNA_yield_2nd_extr
final_DNA_yield
method_DNA_extraction
date_collection
collectors
date_lab_reception
receiver
date_processed
dissector_filtrator
Illumina MiSeq at Argonne National Lab
caliper
Infinite® 200 PRO, Tecan Plate Reader
Invitrogen Qubit fluorometer
theme
None, User defined
sample identification
site description
latitude
longitude
site
time_point
sample description
sample type
diameter
genetic material concentration
treatment
date
responsible_entity
featureType
BCO-DMO Standard Parameters
Automated DNA Sequencer
calipers
plate reader
Qubit fluorometer
instrument
BCO-DMO Standard Instruments
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
RAPID: The black urchin (Diadema antillarum) massive resurgent die-off: Causes, demographic, and community consequences
https://storymaps.arcgis.com/stories/40c072999aab4662b5fff6555a8c77b9
RAPID: The black urchin (Diadema antillarum) massive resurgent die-off: Causes, demographic, and community consequences
<p>In recent decades, many marine species in Caribbean coral reef ecosystems have been impacted by disease. A well-documented mass mortality event affecting the long-spined black sea urchin Diadema antillarum in the early 1980s stands out because it had wide-ranging impacts on reef ecosystems. The urchins function as gatekeeper grazers, feeding mainly on macroalgae and preventing algae from overgrowing reefs. In the 1980s, an unknown disease killed over 90% of these urchins across the Caribbean, changing the reefscape from coral to algal dominated. Nearly 40 years later, black sea urchin populations have yet to recover. In early 2022, a new mortality event of D. antillarum was reported along the Caribbean, including Puerto Rico. This RAPID project is identifying the microbes involved in the current mortality event. The investigators are also assessing urchin populations under contrasting environmental conditions and disease incidences. Results are providing a better understanding of the causes and consequences of disease in Diadema, and insights learned may help prevent or mitigate future mortality events. The project is providing training for underrepresented undergraduate and graduate students in microbiology, bioinformatics, biochemistry, and ecology.</p>
<p>With use of multi-omics technology, this RAPID project is advancing our understanding of the current die-off of Diadema in the Caribbean, including host-pathogen interactions and how these are influenced by environmental factors. The investigators are pursuing the following questions: (1) Are the microbial and biochemical profiles of diseased urchins similar to healthy ones? (2) Do environmental factors, i.e., temperature, salinity, pH, and dissolved oxygen, influence disease incidence? (3) Are different size classes of urchins differentially being affected by the disease? This project is focusing on four study sites along the eastern and northern coast of Puerto Rico, where demographic and biochemical data have been previously collected. At three-month intervals, healthy and diseased D. antillarum urchins are being evaluated for changes in the microbiome using metagenomic and untargeted metabolomic strategies. In addition, urchins from eight transects per site are being counted and measured to determine how disease modulates life-history traits, i.e., population size-structure and density, and to assess disease incidence. The relationship between disease incidence and environmental measurements is being assessed. These multidisciplinary approaches and cutting-edge techniques, combined with the existing demographic and microbial data, make this a one-of-a-kind project to study the progression and effects of the disease at the metabolic, microbial, population, and ecosystem levels.</p>
Diadema antillarum die-off associated microbiota in Puerto Rico
largerWorkCitation
project
eng; USA
biota
oceans
-66.298
-65.287
18.281
18.485
2023-03-23
2023-12-07
Caribbean coral reefs. Fringing reefs located in the northern coast of Puerto Rico.
0
BCO-DMO catalogue of parameters from Capture data and DNA yields from sea urchin specimens plus surrounding water and sediments collected in 2023 from four locations along the coast of Puerto Rico
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/988908.rdf
Name: sample_ID
Units: unitless
Description: <p>Sample identification indicating location, period, and specimen number of the sample (urchin gut, water, or sediment)</p>
http://lod.bco-dmo.org/id/dataset-parameter/988909.rdf
Name: loc
Units: unitless
Description: <p>Site location</p>
http://lod.bco-dmo.org/id/dataset-parameter/988910.rdf
Name: latitude
Units: decimal degrees
Description: <p>Latitude of sampling site</p>
http://lod.bco-dmo.org/id/dataset-parameter/988911.rdf
Name: longitude
Units: decimal degrees
Description: <p>Longitude of sampling site</p>
http://lod.bco-dmo.org/id/dataset-parameter/988912.rdf
Name: loc_abbrev
Units: unitless
Description: <p>Site location abbreviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/988913.rdf
Name: period
Units: unitless
Description: <p>Period of collection of the samples (period 1 = Mar/Apr; period 2 = May; period 3 = Aug/Sep; period 4 = Dec)</p>
http://lod.bco-dmo.org/id/dataset-parameter/988914.rdf
Name: specimen_num
Units: unitless
Description: <p>Specimen identification number indicating the number of the individual gut specimen, or water (w) or sediment (s) samples</p>
http://lod.bco-dmo.org/id/dataset-parameter/988915.rdf
Name: sample_type
Units: unitless
Description: <p>Sample type (sea urchin gut pellet, water, or sediment)</p>
http://lod.bco-dmo.org/id/dataset-parameter/988916.rdf
Name: health_status
Units: unitless
Description: <p>Health status of the collected specimen (if sea urchin)</p>
http://lod.bco-dmo.org/id/dataset-parameter/988917.rdf
Name: SU_equatorial_diameter
Units: centimeters (cm)
Description: <p>Size of the sea urchin specimen at the equatorial plate level</p>
http://lod.bco-dmo.org/id/dataset-parameter/988918.rdf
Name: DNA_yield_1st_extr
Units: nanograms per microliter (ng/uL)
Description: <p>Yield of DNA after the first DNA extraction</p>
http://lod.bco-dmo.org/id/dataset-parameter/988919.rdf
Name: DNA_yield_2nd_extr
Units: nanograms per microliter (ng/uL)
Description: <p>Yield of DNA after the second DNA extraction</p>
http://lod.bco-dmo.org/id/dataset-parameter/988920.rdf
Name: final_DNA_yield
Units: nanograms per microliter (ng/uL)
Description: <p>Final DNA yield; if 2 extractions, both extracted DNA portions are combined and SpeedVac'ed to concentrate DNA</p>
http://lod.bco-dmo.org/id/dataset-parameter/988921.rdf
Name: method_DNA_extraction
Units: unitless
Description: <p>Method used for DNA extraction; simple dna extraction, or double extraction followed by speedvac</p>
http://lod.bco-dmo.org/id/dataset-parameter/988922.rdf
Name: date_collection
Units: unitless
Description: <p>Date of sample collection</p>
http://lod.bco-dmo.org/id/dataset-parameter/988923.rdf
Name: collectors
Units: unitless
Description: <p>Name of person (people) who collected the sample</p>
http://lod.bco-dmo.org/id/dataset-parameter/988924.rdf
Name: date_lab_reception
Units: unitless
Description: <p>Date that the sample was received at Dr. Godoy-Vitorino's Microbiome Laboratory</p>
http://lod.bco-dmo.org/id/dataset-parameter/988925.rdf
Name: receiver
Units: unitless
Description: <p>Name of person who received the sample at the lab</p>
http://lod.bco-dmo.org/id/dataset-parameter/988926.rdf
Name: date_processed
Units: unitless
Description: <p>Date the sample was processed</p>
http://lod.bco-dmo.org/id/dataset-parameter/988927.rdf
Name: dissector_filtrator
Units: unitless
Description: <p>Name of person who processed the sample either by dissecting (urchins) or filtering (water)</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
https://osprey.bco-dmo.org/dataset/985892/data/download
download
onLine
dataset
<p><strong>Study location</strong><br />
The study was conducted at four sites along the northeastern and eastern coasts of Puerto Rico. These sites were selected due to the robust ecological and microbial data on <em>Diadema antillarum</em> collected in previous studies (Rodríguez-Barreras et al., 2018, 2021, and 2022). Furthermore, recent observations suggest contrasting levels of disease impact among these sites, ranging from deeply affected to unaffected by the disease. Punta Melones (<strong>PME</strong>, 18°16'51.40"N, 65°17'12.21"W), located in the Luis Peña Natural Reserve in Culebra had a high density of sea urchins (1.5 ind. per m<sup>2</sup>) before the recent die-off. &nbsp;Nevertheless, Rodríguez-Barreras et al., (2023) observed over 90% mortality of sea urchin at the site. Punta Bandera (<strong>PBA, </strong>18°23'18.46" N, 65°43'5.52"W), Cerro Gordo reef (<strong>CGO</strong> 18°29'05.54"N, 65°20'21.65"W), and Punta Sardinas (<strong>PSA</strong> 18°28'36.34"N, 66°17'52.48"W), are fringing reefs located on the northern coast of Puerto Rico. These sites exhibited densities around 1.26 ind. per m<sup>2</sup>.&nbsp;</p>
<p><em><strong>~ ~ ~ ~</strong></em><br />
<strong>Data Manager comment: </strong><em><strong>The abstract mentions different collection sites with different site abbreviations:&nbsp;</strong></em>Specific collection sites reflect a geographic spread intended to capture environmental variability. Four coastal sites were Cerro Gordo (CGD), Dorado (DBE), Luquillo (PTB), and Punta Las Marias (PTM).&nbsp; <em><strong>se[The sites in the abstract should list those in the Methods and vice versa. Please let data manager know which is correct and provide latitude and longitude values (and verify values for coordinates that are in the data table)]</strong></em><br />
<em><strong>~ ~ ~ ~&nbsp;</strong></em></p>
<p><strong>Data and Sample Collection</strong><br />
Each site was surveyed on months 0, 3, 6, and 9 to collect samples from March 2023 to December 2023, between the hours of 10:00 and 13:00.&nbsp;We set up eight belt transects of 20 m<sup>2&nbsp;</sup>(10 meters x 2 meters) parallel to the coast to estimate density. Transects were positioned at least 5 meters apart from each other, at depths ranging from 1 to 3 meters; as sea urchin abundance tends to be higher at these depths. All individuals within each transect were counted. These data were used to estimate sea urchin density (i.e., the number of urchins per transect per site). At each site, between 1 and 3 healthy sea urchin specimens were collected, for a total of 45 individuals. Additionally, we measured the horizontal test diameter (<em>td</em>) of individuals collected from the transects to assess the size distribution at each reef. A total of 50 individuals per reef were measured using a caliper. If necessary, sea urchins found outside of the transects were also measured until reaching 50 individuals per reef, following Mercado-Molina et al., (2015) and Rodríguez-Barreras et al. (2018, 2023). We also measured the tests of dead and diseased sea urchins when possible. Based on test diameter, sea urchins were categorized into three size classes: small or juvenile (<em>td</em> ≤ 4.0 cm), medium or young adult (4.01 &lt; <em>td</em> ≤ 6.0 cm), and large or adult (<em>td</em> ≥ 6.01 cm). These data were used to construct a size-frequency distribution (Miller et al., 2003; Lugo-Ascorbe, 2004; Rodríguez-Barreras et al., 2014; Rodríguez-Barreras et al., 2023).</p>
<p>Additionally, 1 liter of seawater (in a sterile glass bottle) and 50 mL of sediment (in a sterile plastic tube) were collected during each survey. Sampling was approved by the Department of Natural and Environmental Resources of Puerto Rico permit #DRNA-2022-IC-026 (O-VS-PVSlS-SJ-01291-06052022). The IACUC permit previously approved for Rodríguez-Barreras used in a former sea urchin-microbiota project was renewed until September 29, 2026 (UPRRCM # A530118).</p>
<p><strong>Sample processing</strong><br />
Upon arrival at the Microbiome Laboratory of Dr. Filipa Godoy-Vitorino (University of Puerto Rico Medical School), all sample types were processed according to standard lab operating procedure (see Supplemental Files). Sediment was divided into 50 mL tubes. Seawater was filtered and then divided into two aliquots--one for downstream microbial analyses and the other for metabolomic analyses--with a minimum of 50 milliliters of seawater per sample.&nbsp;Sea urchins were&nbsp;anesthetized, and the size across equatorial diameter was measured with calipers. At that time, the presence of albinism on the sea urchin test was recorded. All sample types were then stored at -80°C until analysis (and dissection).&nbsp;</p>
<p>The sea urchins were dissected following the standard protocol (Tosado et al., 2023)&nbsp;to obtain gut&nbsp;pellets. At the height of the maximum diameter, sea urchins were opened with an equatorial cut and the digestive tract removed. This includes gut tissue, esophagus, stomach, and intestine which are then rinsed with autoclaved sea water. The gut food pellets are voided by gentle shaking.&nbsp;Each pellet was divided into two subsamples for microbial and metabolomic analysis with a minimum size of&nbsp;50 milligrams. At the end of the sampling period (December 2023), a total of 45 sea urchin gut pellets, 14 sediment samples, and 16 seawater samples were collected.&nbsp;</p>
<p><strong>DNA extraction&nbsp;</strong><br />
The DNA&nbsp; of the 3 sample types (gut pellets, sediments, sea water) was then extracted using DNeasy PowerSoil Pro kit (QIAGEN LLC, Germantown Road, Maryland, United States) and quantified using Qubit® dsDNA HS assay kit. We normalized the DNA to 4nM during the 16S rRNA gene library preparation process. Using region-specific primers that include sequencer adapter sequences used in the Illumina flowcell, we used the Earth Microbiome Project standard protocols (Caporaso et al., 2023) &lt;-- [<strong><em>added this. Please confirm</em></strong>]&nbsp;to amplify the hypervariable region V4 of the 16S ribosomal RNA gene (~291 bp) using the universal bacterial primers 515F (5′GTGCCAGCMGCCGCGGTAA3′) and 806R (5′GGACTACHVGGGTWTCTAAT3′). Amplicons were measured with a plate reader (Infinite® 200 PRO, Tecan) and PicoGreen (Invitrogen). Volumes of all the products were combined into one tube after they were quantified, resulting in an equimolar representation of each amplicon. This pool was then cleaned up using AMPure XP Beads (Beckman Coulter), and finally quantified using a fluorometer (Qubit, Invitrogen). Customized sequencing was outsourced to Argonne National Laboratory in Illinois, USA, utilizing a 2 × 150 bp paired-end sequencing kit with an Illumina MiSeq. The sequencer's reads and the metadata that went along with them were uploaded to QIITA study ID 15616 (version 2024.02).&nbsp;</p>
<p>&nbsp;</p>
Specified by the Principal Investigator(s)
<p><em><strong>[Data manager comment: Was this dataset only capture data and DNA yields? If so, isn't the content in this section more appropriate for the microbiome dataset?&nbsp;</strong></em>https://www.bco-dmo.org/dataset/986537<br />
<em><strong>If the downstream microbial analyses are not part of this dataset, then this section content should be removed.&nbsp;</strong></em></p>
<p><strong>Microbial characterization</strong></p>
<p>The downstream microbial analyses were performed locally in QIIME2 (version 2024.05) and include demultiplexing, trimming at 250 bp, denoising. Denoising method was done using DADA2 (Callahan et al., 2016) and included quality filtering, removing chimeric sequences, combining paired-ends, and eliminating singleton reads in order to join, denoise, and duplicate sequences. The bacterial sequences were classified using the Greengenes reference database and taxonomy files (McDonald et al., 2024), trained with classify-sklearn function in QIIME2. Microbiota analyses (diversity and composition) were divided into four sets: (1) sample types (gut digesta pellet, seawater, or sediment), (2) gut digesta pellet between the different collection locations, (3) gut digesta pellet between the different collection periods, and (4) gut digesta pellet between the different collection locations considering the location periods. For each set, beta- and alpha-diversity were calculated, and taxonomic compositions (taxa barplots) and putative biomarker taxa, e.g, MaAsLin (Mallick et al., 2021) and/or LEfSe (Segata et al., 2011) are represented. To correct for difference in extraction dates, those were added from the metadata as a reference for the MaAsLin analysis. In addition, for collection locations (set of analyses#2) <em><strong>[What does this mean? where is this 'set of&nbsp;analyses #2"?]</strong></em>, ecological and metabolic function inference (FAPROTAX, Louca et al., 2016) and putative biomarker data (LefSe) were computed.</p>
Specified by the Principal Investigator(s)
- Imported the file "Metadata_Sea_urchin_NSF2023_oct2025.csv" into the BCO-DMO system.
- Converted Excel dates (45010, 45031, etc) to yyyy-mm-dd format
- Converted other dates from mm/dd/yy format to yyyy-mm-dd format
- Added latitude and longitude columns based on the sampling site locations
Specified by BCO-DMO Data Managers
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
Illumina MiSeq at Argonne National Lab
Illumina MiSeq at Argonne National Lab
PI Supplied Instrument Name: Illumina MiSeq at Argonne National Lab PI Supplied Instrument Description:Customized sequencing was outsourced to Argonne National Laboratory in Illinois, USA, utilizing a 2 × 150 bp paired-end sequencing kit with an Illumina MiSeq. Instrument Name: Automated DNA Sequencer Instrument Short Name:Automated Sequencer Instrument Description: A DNA sequencer is an instrument that determines the order of deoxynucleotides in deoxyribonucleic acid sequences.
caliper
caliper
PI Supplied Instrument Name: caliper PI Supplied Instrument Description:Sea urchin tests were measured using a caliper Instrument Name: calipers Instrument Short Name: Instrument Description: A caliper (or "pair of calipers") is a device used to measure the distance between two opposite sides of an object. Many types of calipers permit reading out a measurement on a ruled scale, a dial, or a digital display.
Infinite® 200 PRO, Tecan Plate Reader
Infinite® 200 PRO, Tecan Plate Reader
PI Supplied Instrument Name: Infinite® 200 PRO, Tecan Plate Reader PI Supplied Instrument Description:Amplicons were measured with a plate reader (Infinite® 200 PRO, Tecan) and PicoGreen (Invitrogen) dye. Instrument Name: plate reader Instrument Short Name: Instrument Description: Plate readers (also known as microplate readers) are laboratory instruments designed to detect biological, chemical or physical events of samples in microtiter plates. They are widely used in research, drug discovery, bioassay validation, quality control and manufacturing processes in the pharmaceutical and biotechnological industry and academic organizations. Sample reactions can be assayed in 6-1536 well format microtiter plates. The most common microplate format used in academic research laboratories or clinical diagnostic laboratories is 96-well (8 by 12 matrix) with a typical reaction volume between 100 and 200 uL per well. Higher density microplates (384- or 1536-well microplates) are typically used for screening applications, when throughput (number of samples per day processed) and assay cost per sample become critical parameters, with a typical assay volume between 5 and 50 µL per well. Common detection modes for microplate assays are absorbance, fluorescence intensity, luminescence, time-resolved fluorescence, and fluorescence polarization. From: http://en.wikipedia.org/wiki/Plate_reader, 2014-09-0-23.
Invitrogen Qubit fluorometer
Invitrogen Qubit fluorometer
PI Supplied Instrument Name: Invitrogen Qubit fluorometer PI Supplied Instrument Description:Volumes of all the products were combined into one tube after they were quantified, resulting in an equimolar representation of each amplicon which was then quantified using a fluorometer (Qubit, Invitrogen). Instrument Name: Qubit fluorometer Instrument Short Name: Instrument Description: Benchtop fluorometer. The Invitrogen Qubit Fluorometer accurately and quickly measures the concentration of DNA, RNA, or protein in a single sample. It can also be used to assess RNA integrity and quality.
Manufactured by Invitrogen, Carlsbad, CA, USA (Invitrogen is one of several brands under the Thermo Fisher Scientific corporation.)